1 files changed, 39 insertions, 0 deletions
diff --git a/examples/junit/src/test/java/com/example/DirectoryInputsFuzzTest.java b/examples/junit/src/test/java/com/example/DirectoryInputsFuzzTest.java
new file mode 100644
index 00000000..1d1ce2c4
--- /dev/null
+++ b/examples/junit/src/test/java/com/example/DirectoryInputsFuzzTest.java
@@ -0,0 +1,39 @@
+// Copyright 2022 Code Intelligence GmbH
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.example;
+
+import com.code_intelligence.jazzer.api.FuzzedDataProvider;
+import com.code_intelligence.jazzer.api.FuzzerSecurityIssueMedium;
+import com.code_intelligence.jazzer.junit.FuzzTest;
+
+public class DirectoryInputsFuzzTest {
+  private static boolean firstSeed = true;
+
+  @FuzzTest(maxDuration = "0s")
+  public void inputsFuzz(FuzzedDataProvider data) {
+    // Only execute the fuzz test logic on the empty input and the only seed.
+    if (data.remainingBytes() == 0) {
+      return;
+    }
+    String input = data.consumeRemainingAsString();
+    if (!firstSeed && !input.equals("directory")) {
+      throw new IllegalStateException("Should have crashed on the first non-empty input");
+    }
+    firstSeed = false;
+    if (input.equals("directory")) {
+      throw new FuzzerSecurityIssueMedium();
+    }
+  }
+}